Disiloxane

This article is about a specific compound. For the class of compounds, see siloxane.
Disiloxane
Structural formula of disiloxane with explicit hydrogens
Ball-and-stick model of the disiloxane molecule
Names
IUPAC name
Disiloxane
Other names
Disilyl ether

Disilyl oxide
Hexahydrodisiloxane
Perhydrodisiloxane
Silyl ether

Silyl oxide
Identifiers
3D model (JSmol)
Abbreviations DS

DSE
DSO

ChEBI
ChemSpider
1206
MeSH Disiloxane
  • InChI=1S/H6OSi2/c2-1-3/h2-3H3 checkY
    Key: KPUWHANPEXNPJT-UHFFFAOYSA-N checkY
  • [SiH3]O[SiH3]
Properties
H6OSi2
Molar mass 78.217 g·mol−1
Appearance Colorless gas
Boiling point −15.2 °C (4.6 °F; 257.9 K)
0.24 D
Structure
Orthorhombic
Pmm2
Bent
Hazards
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 4: Will rapidly or completely vaporize at normal atmospheric pressure and temperature, or is readily dispersed in air and will burn readily. Flash point below 23 °C (73 °F). E.g. propaneInstability 1: Normally stable, but can become unstable at elevated temperatures and pressures. E.g. calciumSpecial hazards (white): no code
2
4
1
Related compounds
Related compounds
 Dimethyl ether

Disilane
Silane
Silanol
Trisilane

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Disiloxane has the chemical formula Si
2H
6O. It is the simplest known siloxane with hydrogen only R groups. The molecule contains six equivalent Si−H bonds and two equivalent Si−O bonds. Disiloxane exists as a colorless, pungent gas under standard conditions. However, it is generally safe for human use as evidence in its widespread use in cosmetics. It is also commonly known as disilyl ether, disilyl oxide, and perhydrodisiloxane